update in static_2

[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / rt_computation / csx_csx.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_csx.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_csx.ma
index b0921440d36c723ed8c4d76c15db87d9e2ad519e..07cace3d31c49e554388f9c7a77226b905e613ae 100644 (file)
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_csx.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_csx.ma
@@ -55,7 +55,7 @@ qed.
 (* Basic_1: was just: sn3_abbr *)
 (* Basic_2A1: was: csx_lref_bind *)
 lemma csx_lref_pair_drops (h) (G): 
-      â\88\80I,L,K,V,i. â¬\87*[i] L ≘ K.ⓑ{I}V →
+      â\88\80I,L,K,V,i. â\87©*[i] L ≘ K.ⓑ{I}V →
       ⦃G,K⦄ ⊢ ⬈*[h] 𝐒⦃V⦄ → ⦃G,L⦄ ⊢ ⬈*[h] 𝐒⦃#i⦄.
 #h #G #I #L #K #V #i #HLK #HV
 @csx_intro #X #H #Hi elim (cpx_inv_lref1_drops … H) -H
@@ -71,7 +71,7 @@ qed.
 (* Basic_1: was: sn3_gen_def *)
 (* Basic_2A1: was: csx_inv_lref_bind *)
 lemma csx_inv_lref_pair_drops (h) (G):
-      â\88\80I,L,K,V,i. â¬\87*[i] L ≘ K.ⓑ{I}V →
+      â\88\80I,L,K,V,i. â\87©*[i] L ≘ K.ⓑ{I}V →
       ⦃G,L⦄ ⊢ ⬈*[h] 𝐒⦃#i⦄ → ⦃G,K⦄ ⊢ ⬈*[h] 𝐒⦃V⦄.
 #h #G #I #L #K #V #i #HLK #Hi
 elim (lifts_total V (𝐔❴↑i❵))
@@ -80,9 +80,9 @@ qed-.
 
 lemma csx_inv_lref_drops (h) (G):
       ∀L,i. ⦃G,L⦄ ⊢ ⬈*[h] 𝐒⦃#i⦄ →
-      â\88¨â\88¨ â¬\87*[Ⓕ,𝐔❴i❵] L ≘ ⋆
-       | â\88\83â\88\83I,K. â¬\87*[i] L ≘ K.ⓤ{I}
-       | â\88\83â\88\83I,K,V. â¬\87*[i] L ≘ K.ⓑ{I}V & ⦃G,K⦄ ⊢ ⬈*[h] 𝐒⦃V⦄.
+      â\88¨â\88¨ â\87©*[Ⓕ,𝐔❴i❵] L ≘ ⋆
+       | â\88\83â\88\83I,K. â\87©*[i] L ≘ K.ⓤ{I}
+       | â\88\83â\88\83I,K,V. â\87©*[i] L ≘ K.ⓑ{I}V & ⦃G,K⦄ ⊢ ⬈*[h] 𝐒⦃V⦄.
 #h #G #L #i #H elim (drops_F_uni L i) /2 width=1 by or3_intro0/
 * * /4 width=9 by csx_inv_lref_pair_drops, ex2_3_intro, ex1_2_intro, or3_intro2, or3_intro1/
 qed-.